2. Īō, Iūs, and Īōn, Iōnis, f., = Ἰώ, a daughter of Inachus, king of Argos, beloved by Jupiter, and changed, through fear of Juno, into a cow; afterwards worshipped as an Egyptian deity, under the name of Isis.
Form Io, Ov. H. 14, 85; Prop. 2, 28 (3, 24), 17; Ov. M. 1, 588 sq.; Val. Fl. 4, 351 sq.; Hyg. Fab. 145.
Gen. Ius, Nemes. Cyn. 31.
Acc. Io, Ov. M. 1, 588; Amm. 2, 19, 29.
Abl. Io, Prop. 2, 13, 19.
Form Ion; dat. Ioni, Plaut. Aul. 3, 6, 20.
Acc. Ionem, Serv. Verg. A. 3, 153.